Apparatus for discharging substantially vertical retorts for the destructive distillation of coal.



H. W. WOODALL & A. MOD. DUOKHAM. APPARATUS FOR mscameme SUBSTANTIALLY VERTICAL amoms FOR THE DBSTBUOTIVB DISTILLATION 0F COAL.

APPLIOATION FILED FEB. 1, 1909.

1,065,572. Patented June 24, 1913.

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H. W. WOODALL & A. McD. DUGKHAM.

APPARATUSFOR DISCHARGING SUBSTANTIALLY VERTICAL RETORTS FOR THE DESTRUGTIVE DISTILLATION 0? GOAL.

APPLICATION FILED PEB.1,1909.

1,065,572, Patented June 24,1913.

2 SHEETS-SHEET 2.

anvonfoz's Q/Vdmmuo WA (Qua/M w UNITED STATES PATENT OFFICE.

HAROLD WHITEMAN WOODALL. OF WIMBORNE, AND ARTHUR MCDOUGALL DUCKHAM, OF UPPER PARKSTONE, ENGLAND, ASSIGNORS TO ISBELL-PORTER COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW YORK.

APPARATUS FOR DISCHARGING SUBSTANTIALLY VERTICAL RE'TORTS FOR THE DESTRUCTIVE DISTILLATION OF COAL.

Specification of Letters Patent.

Patented June 24, 1913.

Application filed February 1, 1909. Serial No. 475,474.

To all whom it may concern:

Be it known that We, HAROLD WHrrEMAN VVOODALL, residing at Royston, \VimborneQ and ARTHUR MGDOUGALL' DUCKHAM, residing at Walden, Alexandra Road, Upper- Parkstone, in the county of Dorset, Eng-- of the coke by gravitation, and in which, for regulating the free discharge of the coke, there is an extracting roller at the lower end of the inclined surface, such a roller preferably having spirally arranged teeth and being rotated on its axis to govern the discharge.

Even when the ext-racting roller has teeth, owing to the fact that the coke is of such size that the angle between one row of teeth or the blade equivalent thereto and the next row, or blade, cannot be small lest the coke be not engaged, the coke is not continuously moved or stirred.

According to the present invention, the stirring of the coke is rendered continuous. This may be done for instance, by arranging the teeth so that they are equivalent to helical blades, or by substituting actual helical blades for the rows of teeth. Thus the coke leaving the retort is always in contact with a blade at one or more points and prevented from slip'ping, and at the same time is also continuously stirred.

The object of our invention is to provide a construction and arrangement of parts effecting the above stated operations which is cheap to build, easy of access, inexpensive to repair, and other evident functions and advantages of the specific constructions and arrangement of the parts, which will hereinafter appear from the detailed description rted on an inclined surface at such an I ange beneath the retort, that although itsupports the greater part of the weight of the charge, it does not prevent the discharge of the invention and the manner of applying the same.

Our invention consists in structural embodiment of the above features and in specifically effective relative arrangement of parts, all of which will be more articularly described in the following specification and then clearly pointed out in the appended claims.

Reference is had to the accompanying two sheets of drawings, forming a part of this specification, in which similar reference characters indicate corresponding parts throughout the several figures.

I Figure 1 is an end elevation of our invention. Fig. 2 is a vertical section on line IIII of F ig. 3. Fig. 3 is a section on line III-III of Fig. 2. Fig. 4 represents in elevation a number of the sections composing the discharging or extracting roller, and Fig. 5 represents a modified form of the spirally arranged discharging roller.

Referring to the drawings, 1 is the retort, the lower end of which is only indicated and rests in an iron ring 2, which is suitably supported above the-floor of the plant by the uprights 3, and horizontal iron and eoncrete framework 4. \Vhile we have shown only one vertical retort, it will be readily seen that our invention comprises a system of retorts which are kept full of coal by means of any suitable green coal charging device located at their top and which form no part of our present invention. The coal descends through the hot retorts and .is carbonized, coming out at the bottom as coke which is partially supported at the bottom on the inclined surface or sloping side 5 of the gas tight hopper 6. The lower end of said slo ing side 5, as shown in Fig. 2, is located ust to the outer side of a vertical line dropped from the bottom opening of retort and the coke discharging will be made to assume such a position as to continually slip toward the extracting roller 7. This coke is prevented from sliding off the inclined surface 5 by the extracting roller 7, which is preferably built up from a series of helical blades, so that some portion of its edge is always in the proper position for spilling over some of the coke and making the operation a continuous one. For

; square opening fl convenience in manufacture, this extracting roller 7 consists, as shown, of fourteen sep arable sections 8, 8, as shown in Fig. 4, which slide on a square shaft 10. The in each of the; sections 8, is arranged difi' rently so that. when they are slipped over the square shaft 10 in proper succession, they will have rotation through ninety degrees, as indicated in Fig. 3. While we have shown our preferred form of extracting roller, it may be readily seen that the extracting roller could be made in one piece as shown in Fig. 5.

11, 11, are swinging pendants pivotally supported on a rod 12, and are arranged so that their lower ends almost touch the extracting roller 7, and thereby prevent any loose pieces of coke from running over the top of the roller and causing an irregular or intermittent discharge of coke.

13 is a discharging drum revolving in a close fitting and circular casing 15 situated below the extracting roller, and consists of a hollow cylinder closed at both ends and having an opening '14 at part of its circumference. \V ion the opening 14 is on the upper side, this drum 13 is free to receive the coke from the extracting roller 7, and when the opening 14 revolves to the lower side it discharges through an opening 16 in the lower side of casing 15, into any suitable conveyer or barrow for final removal. This drum 18 may be held against the casing 15 by means of the adjustable springs 17, 17, so as to make a gas tight joint between the drum 13 and inclosing casing 15.

1.8, 18 are holes in the'inclined surfaces 5 directly under the middle of the retort, which are closed by removable plugs 19, 19, and are for the purpose of permitting the insertion of a bar to loosen up the coke when stuck in the apparatus.

:0 is a sprinkler which receives water. :"rom a pipe 21 and is for the purpose of throwing water upon and quenching the :oke resting upon the inclined surface 5 and extracting roller 7.

The proper rotation of the extracting .allcr '7 and discharging drum is acco1n piished by providing a rocking shaft 22, which receives its motion from any suitable source of power. At one end of said shaft if. is provided a slotted crank arm 23 which engaged by one end of an adjustable lever while its other end engages one end of an oscillating lever 25. The other or free end .f the lever 25 is provided with a pivoted :iiITt-OI 26, having a V-shaped edge engaging a. m -shaped oove in the periphery of the wheel 27, said wheel 27 being keyed to an .;.\tBllO1 end of the square shaft 10 which passes through a stufiing box and carries end rotates the extracting roller 7, see Fig. 3.

28 is a toothed wheel connected with the shaft 29, which rotates the drum 13, and is engaged by a pawl 31, pivotally supported on the oscillating arm 30, said arm being operated by a link 32, connected to the crank 33, attached to the opposite end of rock shaft :22, from that of slotted arm 23.

From the foregoing described structure and arrangement of parts it will be seen that the extracting roller 7 has a constant rotation and the receiving drum 13 has a corresponding rotation and both are operated from a single source of power.

It will also be seen that the extracting roller 7, and drum 13, can be made to be inoperative or rotate independent of each other, by the lifting or disengaging of the sector 26'01' pawl 31.

From the foregoing detailed description and mode of operating the invention it will be clearly seen that we have devised a discharging device for coke ovens which can be easily and quickly adjusted or repaired, and we have perfected an apparatus in which all the objects set out in the statement of invention are fully attained and eff iently carried out.

Various changes may be made in the details of our invention, and it will be obvious to those skilled in the art that the same may be modified in many ways without changing the operation of the machine or departing from our invention.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent is as follows 1. A coke dischargin device comprising a substantially vertica retort having an open bottom, a downwardly inclined support directly under the open bottom, beginning at the lower end of one wall and terminating directly below the other wall of the retort. and adapted to sustain the weight of the coke in the retort. a rotary extracting or discharging roller having helical blades formed by a series of separate and independent sections secured to a shaft, said extracting roller being situated at and rojecting above the lower end of the inclined support and adapted to retain and engage the coke on the said inclined support, a gas tight coke receiving and discharging drum below the extracting roller, means for independently and intermittently operating said extracting roller and discharging drum.

9. A coke discharging device comprising a substantially vertical retort having an open bottom, a downwardly inclined support directly under the open bottom, beginning at the lower end of one wall and terminating directly below theother wall of the retort, and adapted to sustain the weight of the coke in the retort, a rotary extracting roller situated at and projecting above the lower end of the inclined support and adapted to retain and engage the coke on the said inclined support and a series of movable pendants supported above and terminating above and near the periphery of the extracting roller, a gas tight coke receiving and discharging drum below the extracting roller. and means for independently and intermittently operating said extracting roller and discharging drum.

3. A coke discharging device comprising a substantially vertical retort having an open bottom, a gas tight chamber connected with and attached to the bottom of the retort and provided with a downwardly inclined support directly under the open bottom. beginning at the lower end of one wall and terminating directly below the other wall of the retort, and adapted to sustain the weight of the coke in the retort, a sprinkler adapted to throw water on and quench the coke resting on the support, a

rotary extracting roller of separate and independent sections and situated at and projecting above the lower end of the inclined support and adapted to retain and engage the coke on the said inclined support, a series of movable and independent pendants supported above and terminatin near the periphery of the extracting r01 er, and a coke receiving and discharging drum below the extracting roller, and means for independently and intermittently operating said extracting roller and discharging drum.

In testimony whereof we afiix our signatures in the presence of two witnesses.

HAROLD WHITEMAN WOODALL. ARTHUR MCDOUGALL DUGKHAM.

Witnesses:

J. S. GREEN, S. P. TOPLEY. 

